How do I control parameter a control that is inside a formview that has another formview in it?

I have a formview2 within another formview1 but I want to control parameter from a sqlDataSource3 outside the formview a control that is in formview2

<asp:SqlDataSource ID="SqlDataSource1" SelectCommand='SELECT "USER,UID" FROM "TUSERS"'>
<asp:FormView ID="FormView1" runat="server" DataSourceID="SqlDataSource1">

        <asp:Label ID="Label1" runat="server" Text='<%# Bind("USER") %>'></asp:Label><br />
        <asp:Label ID="Label2" runat="server" Text='<%# Bind("UID") %>'></asp:Label><br />

        <asp:FormView ID="FormView2" runat="server" DataSourceID="SqlDataSource2">
              <asp:Label ID="Label3" runat="server" Text='<%# Bind("SALARY") %>'></asp:Label><br />
              <asp:Label ID="Label4" runat="server" Text='<%# Bind("SID") %>'></asp:Label><br />

        <asp:SqlDataSource ID="SqlDataSource2" SelectCommand='SELECT "SALARY,SID" FROM "TSALARY" WHERE ("UID" = :UID)'>
              <asp:ControlParameter ControlID="Label2" Name="UID" PropertyName="Text" Type="Decimal" />


<asp:SqlDataSource ID="SqlDataSource3" SelectCommand='SELECT "details" FROM "tdetails" WHERE ("SID" = :SID)'>
    <asp:ControlParameter ControlID="Label4" Name="UID" PropertyName="Text" Type="Decimal" />

The bold line does not work

 How do I access Label4 from code?

I tried: Page.findControl("Label4") but null the same way as Formview2.findControl("Label4") and nothing.

8/30/2007 9:20:52 PM 72751 articles. 3 followers. Follow

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Because FormView2 is within a container (FormView1) it is not accessible directly.  You have to get the topmost parent and then traverse through the tree. 

dim fv2 as FormView = CType(FormView1.FindControl("FormView2"), FormView)
if fv2 isnot nothing then
 dim lbl as Label = Ctype(fv2.FindControl("Label4"), Label)
 if lbl isnot nothing then
    Msg.Text = "found the label and its value is: " & lbl.text
 end if
end if
8/30/2007 9:35:18 PM

Since your Label4 is inside the formView2, Try this

FormView FormView2 = FormView1.FindControl("FormView2")   as FormView;

Label Label4 = FormView2.FindControl("Label4") as Label; 


This should work 


[Don't forget to click on Mark as answer on the post that helped you ]
8/30/2007 9:36:46 PM

Great! thanks

But how do I make Repeater1 bind after I set Label5.Text?


<asp:Label ID="Label5" Text="0"></asp:Label>

<asp:SqlDataSource ID="SqlDataSource3" SelectCommand='SELECT "details" FROM "tdetails" WHERE ("SID" = :SID)'>
    <asp:ControlParameter ControlID="Label5" Name="UID" PropertyName="Text" Type="Decimal" />

<asp:Repeater ID="Repeater1" runat="server" DataSourceID="SqlDataSourceCategories">

        protected void bindLabel5() { //sets label5.text to whatever the buried label4.text databounded value is
FormView fv = FormView1.FindControl("FormView2") as FormView;
if (fv != null) {
Label l = fv.FindControl("Label4") as Label;
if (l != null) Label5.Text = l.Text;

  Where in the code should i call bindLabel5 to first set the label5.text and then Repeater1.DataBind()?
8/30/2007 11:23:37 PM

Rebind the Repeater to the datasource, which will (should) fire the Select event of the SqlDataSource.

8/30/2007 11:41:14 PM

ok, here is what I am trying to do:

 1. A formView2 databinds after his parent formView1 binds.

2. When FormView2 binds, label5.text is updated

3. Repeater3 binds after label5.text is updated

But it seems that all the databindings are happening before the label5.text updates.

8/31/2007 2:59:44 AM


  You can use <asp:Parameter /> instead of ControlParameter and in SqlDataSource's Selecting event handler you can manually assign value to the parameter:

 protected void SqlDataSource3_Selecting(object sender, SqlDataSourceSelectingEventArgs e)

//        e.Command.Parameters[0].Value=...//Use FindControl method to find the Labe, assign it's Text to the parameter


  If it doesn't work, please inform us.


Allen Chen
Microsoft Online Community Support

Please remember to mark the replies as answers if they help and unmark them if they provide no help.
9/4/2007 8:09:52 AM

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